Lost discount and minimum period restarted after moving
Hi, I've recently moved to a new address twice - once in April 2023 and again in October 2023. After the first month or two since moving the first time, my bill settled back down to its usual amount of £28.50, comprised of a £62 package and rolling credit of £33.50 for discount. Since moving again in October, my first bill was calculated using the full package total of £73 (assuming this is the new package price since last year's price increase?) meaning I was charged £144 before a £16.66 credit amount which I'm guessing is a pro-rata refund for the incomplete billing month at my previous address. Since then I have been charged £62 each month with no sign of the previous discount that I was getting before.
I've tried to get an answer through the WhatsApp chat a few times and all I'm told is that I have a £73 package with a discount of £11, bringing my total to £62 which I can already see for myself in my bills. I have also been told that the discount I had prior to moving expired when I moved, but no explanation as to why, and that my contract was renewed when I moved in October 2023 despite not making any changes to my package. Additionally I am now within contract until 30/04/2025 and would currently have an early disconnection fee of £932.33 to pay if I wanted to avoid paying a monthly bill that is much higher than I ever agreed to.
Is there any way to correct my monthly bill amount and receive a refund for the last few months where I feel I've paid much more than I should have? Back in April last year when the prices were increasing and I was given the option to leave free of charge, I accepted a small discount on top of what I was already receiving and the email from this states that my contract started 4th October 2022, I had 12 months minimum period remaining, I had discounts of £3 and £27 for 18 months until 3rd April 2024 and an additional discount until 2nd October 2023 (I'm guessing the discount from agreeing to stay when prices increased). What has caused all of this to change when I have not made any changes to my package since?
Thanks!